Spike or nail puller.



N'o. 728,884. PATEN'IIED-MAY 26, 1.903. J.I-I.DUNGAN.

' SPIKE 011 NAIL PULLER.

APPLIOATION rn.nn 00'124. 1soz.

fl?atented May 26, 1903.

PATENT OFFICE.

JOHN H. DUNOAN, OFOAKHILL, WEST VIRGINIA.

SPIKE OR NAIL PULLER.

SIEGIFICATION forming paart of Letters Patent N0. 728,884, dated. May 26, 1903.

Applica.tion filed 0ctober 4, 1902. Serial N0. 125,902. (N0 model.)

T0 all whom it may concern:

Be it; known that I, J OHN I-I. DUNCAN, a citizen of the United Stabes, residing ab Oakhill,

in the oounty of Fayette and State of West Virginia, have invented new and -useful Improvements in Spike or Nail Pullers, of which the following is a specification.

This invention relates to spike or nail pullers; and the objeet of the invention is 110 provide an elfective device for removing nails or spikes.

Another object is t0 provide means hereby the fulerum of the lever 0f the spike-Imller ean be changed 120 inerease the leverage.

In order to appreciate the advantages of the device, referenee should be had to the aceompanying drawings, which illust'rate its's coustruction, and in which- Figure 1 is a perspeetive view of the spikepuller construced in aocordance with my invention. Fig. 2 is a vertical longitudinal seetional view through the spike-puller.

The reference-numeral 1 designates a base,

011 the respeobive ends of whieh are arranged upwardly-projeeting or vertical standards 2 and 3. Each standard is shaped to a step formation-Azhat is to say, the forward portion of each standard iss provided With shoulders 0x seats 4, arranged one above the other similar t1o the manner of arranging steps, so that the fulcrum of the lever for actuaoing the puller can be changed, as will be explained hereinafter. Arranged 011 the inner walls of eaeh standard are forwarcllyand upwardly inolii1ed grooves and 6, whieh extend from near the rear of the standards to the forward edges thereof. thus formed is a U-shaped clevis 7 provided with forwardly-extending ends terminziting in hooked extremities8 and 9 of the elevis 7 Slidably movable in the groovee Arranged on the bar 10 are t;wo oppositelydisposed opposing jaws 14 and 15. Each of the jaws is provided with transverse openings 16 and 17, respec'oively, through Which the bar 10 projeots. 1 The jaws are ben seeured pivotally thtereto by pins.l8 and. 19. Eaeh jaw is segmentally shaped, and one of the jaws isprovided with fiwo upwardly-eurved parallel fingers 20 and 21, while the other jaw is provided with a Single upwardly-projecting cur'ved finger 22, whih is interposed between the two parallelfingers 20and 21 to prevent; a lateral movemet'of either of the jaws, as will be apparent by reference to Fig. l.

Projecting from either standard is a pin er .lug 23, eaeh of Which is engaged by one of the two pa'rallel slotted arms 24 o1 25, carried its proper relative position 0n the seats, so

as 110 diminish the liabiliby of any displacement of the jaw duringthe operation of re- -moving the spike.

In operating the deviee the proper fulcrum will be determined after plaeing the jaws 14 o1 15 in engagement witsh the spike, and a pineh-bar of any preferred consbruction, such as is designated by the reference-numeral 27, will loe inserted between the fingers 20 and 21 on one of the jaws and the finger 22 0n the other, so that the pinch bar er handle will rest: upon the fulerum-bar 26, and by applyingpressnre 130 the opposite end of the bar the spike can be promptly removed. The elevis 7 will materially assist in guiding the jaws when pressure is applied 130 the ends 8and 9, forming efiieient bearing for the reeeption of the ende of the bar 10.. Thus an efieetive and durable spike-puller iSprovided,

IOO

bar 011 the standards, and a handle adapted to rast upon the fulerum-bar and enga.ge the under side of the jaws whereby the spike can be released.

2. A Spike puller, eomprising a pair of standards provided with inclined slots, 01: a clevis movably seeured in sa.id slots, a pair of opposing jaws carried by the elevis and a fulcrum-bar supported by the standards, and

a lever ada.pbed 110 engage the jaws to close them on the spike and extraet; in.

3. A spike-puller comprising a pair of parallel standards having seats of varying heights, lugs projected oppositely from the standards, a fulerum-bar having slolated depending ends engaging the lugs, sald bar being adapted 110 be seated 011 the differenb seats, pivoted jaws secured 130 the standarcls,

JOHN H. DUNCAN.

Witnesses S. E. DUNCAN, B. A. HEDRICK. 

